Synonyms|140Antonyms|4|Broader|6Narrower|10Related|289
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shallow(adjective, superficial)
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sheaf
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slender
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slight
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slim
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spurious
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square(check, pass, program)
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stone
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strawboard
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superficial
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tally(check, pass, program)
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tenuous
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thick paper(expression, idiom)
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timetable(check, pass, program)
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two-dimensional
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voucher(check, pass, program)
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wadding
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wafer-thin(adjective, thin, frail, slim, flimsy)
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weak(adjective, superficial)
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without substance(expression, idiom)
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APASmart Define. (2015). cardboard thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/cardboard/thesaurus/synonyms
ChicagoSmart Define. 2015. "cardboard thesaurus" https://smartdefine.org/cardboard/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, cardboard thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/cardboard/thesaurus/synonyms>.
MLASmart Define. "cardboard thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/cardboard/thesaurus/synonyms>